Ligaments TRIZ Cases

Barbed microneedles penetrate infarcted myocardium to anchor a procoagulant patch, eliminating suture complexity while preventing patch slippage.

A quadriceps tendon harvesting system uses a guide wire to maintain an offset from the knee capsule while rotating a shaped blade into the tissue.

A multi-layered biomimetic construct replicates native tissue architecture to support cell ingrowth and mechanical integrity.

A fixation device with an asymmetric aperture aligns parallel to the bone tunnel axis for secure graft attachment.

A composite tendon repair implant shares initial load while promoting tissue ingrowth through its bioinductive structure.

A knee joint prosthesis design featuring segmented artificial ligaments mimicking ACL and PCL functions for accurate kinematic simulation.

Crimping mechanism secures soft tissue without sutures, reducing healing time and fracture risk while eliminating suture-related complications.

Segmented tails distribute load to prevent graft damage while bioabsorbable materials dissolve after tissue integration.

A tendon repair bridge uses engagement legs to clamp subcomponents together while maintaining a low-profile design for immediate motion.

A porous fixation device enables biological tissue ingrowth through its internal structure.

Segmented cartilage prosthetic implants replace damaged tissue via bone anchors and screw fixation, preserving bone strength and reducing surgery duration.

A coil tissue repair device encircles elongate tissue to distribute tension along the ligament surface.

An asymmetric canted spacer matches elliptical tunnel geometry to eliminate the windshield wiper effect and ensure complete circumferential graft fixation.

A convex-concave reinforcing insert distributes suture pressure over a larger contact area, preventing bone plug pull-through failure during ACL reconstruction.

A prosthetic knee system uses a single continuous cable to replicate anterior and posterior cruciate ligaments.

Segmented decellularized allograft slices resolve manufacturing complexity while improving cell adhesion and mechanical strength.

A reinforced collagen matrix device augments soft tissue repair with polymeric surgical mesh strips.

Single tunnel ACL reconstruction systems segment grafts into distinct bundles to resolve the contradiction between surgical complexity and knee stability.

A transparent graft tube compresses tissue to a target diameter while an etched ruler provides real-time length measurement.

Sheath with ledges separates graft bundles to restore knee stability while reducing surgical complexity.

A shaped graft harness with a radial groove secures looped ligament grafts for femoral tunnel reconstruction.

A medical implant delivery system uses a detachable frame to position an implant adjacent to bone.

Liquefied thermoplastic material penetrates bone walls to anchor graft fasteners, preventing slipping in poor quality bone.

Segmented electromagnetic devices mimic skeletal muscle function through flexible connections and dual-purpose magnetic cores.

Segmenting hydrogel into directional modules resolves single-axis fabrication limits, enabling complex cardiac muscle simulation.

A surgical system creates C-shaped bone tunnels to mimic natural anterior cruciate ligament insertion sites for accurate graft anchoring.

Automated inflation replaces manual pumps, resolving patient operation difficulties while maintaining compact implanted device volume.

A biocompatible double-layer matrix combines collagen and water-soluble polymer to restore soft tissue.

A universal cross-pinning guide uses interchangeable pins to align femoral and tibial tunnels independently.

Hydraulically expanding collagen biostaples resolve the trade-off between rapid surgical insertion and long-term mechanical stability.

Pre-assembled elastic staple transitions to second configuration, resolving post-insertion manipulation trade-offs.

Multi-strand bundle grafts use suturing to create tied and loose regions, resolving stability versus excessive tension trade-offs in ligament reconstruction.

Skin flaps with neurovascular structures convert mechanical stimuli into neural signals, restoring cutaneous and proprioceptive feedback.

An expandable fixation device compresses soft tissue grafts against bone using outwardly deploying wedge and wing portions.

A tubular composite silk sheath scaffold accelerates bone ingrowth, replacing mechanical fixation to prevent graft pull-out failure.

Stitched reinforcing fibers in a multilayered tissue graft maintain mechanical strength and prevent hernia recurrence despite enzymatic degradation.

Centrifuge container combines PRP with collagen scaffold to resolve fluidic implant migration during tissue repair.

A segmented patellar implant elevates and tilts the patellar tendon to correct alignment.

Intermittent ultrasonic welds join fibrillar layers to balance tensile strength and pliability for tendon repair.

An interference screw with a deployable wedge mechanism compresses tendon against bone walls, eliminating complex multi-step fixation procedures.

Expandable sheath bone anchor inserter tool prevents tendon damage during screw insertion by maintaining consistent tension.

Segmenting the tibial baseplate into fixed medial and mobile lateral components replicates natural knee rollback while maintaining anterior-posterior stability.

An implantable tendon protection system uses an adhesive surface to attach a matrix scaffold directly to partially torn tissue.

A graft retention device uses a sliding loop on an elongated body to reorient the implant within the bone tunnel.

A planar implant uses a clamping surface with openings to compress tissue against bone.

A sparse contact tibia cutting jig mechanism uses minimal knee contact points to guide resection cuts with precise angular orientation.

A composite ACL graft stitches synthetic reinforcement through biological tissue to sustain tensile loads.

A barbed staple system anchors sheet-like materials to bone or tissue using segmented arms with varying cross-sectional areas.

A nested anchor assembly enables post-insertion tension adjustment via rotation, resolving the trade-off between secure fixation and construct flexibility.

A bi-layer leno woven scaffold delivers isotropic mechanical strength to resolve anisotropic failure in rotator cuff tissue repair.